Earth Structure

by: Isaiah, Olivia

Earth's Layers

The Earth's layers are:

- Crust: "Hard and Rigid, it's the earth's outermost and thinnest layer, only a few miles (5 km) thick under the Oceans and averaging 20 miles (30 km) thick under the continents."


-Mantle: Subdivided into two regions, upper and lower, this dense layer made of hot, semisolid rock is located directly below the crust and is about 1,800 miles (2,900 km) thick.


-Outer Core: Is the only liquid layer of the earth - a sea of mostly iron and nickel. It is roughly 1,800 to 3,200 miles below the surface and about 1,400 miles thick.


-Inner Core: An extremely hot, solid sphere of mostly iron and nickel at the center of the Earth. It is 3,200 to 3,960 miles below the surface and about 750 miles in diameter

More info.

instructions on page of link

Hope you learned